What type of tumor is most commonly found in women according to the provided information?

Prolactinoma is the most commonly found tumor in women according to the context provided. This tumor is a type of pituitary adenoma that produces an excess amount of prolactin, a hormone responsible for lactation and reproductive functions. Prolactinomas are particularly prevalent in women, especially those within their reproductive years, often leading to symptoms such as galactorrhea (milk production) and menstrual irregularities.

In contrast, other tumors listed such as medullary carcinoma, corticotropic adenoma, and adamantinoma do not have the same prevalence in women. Medullary carcinoma, which can refer to a type of thyroid cancer, and corticotropic adenoma, involved in Cushing's disease, occur less frequently when compared to prolactinomas. Adamantinoma, primarily a bone tumor, is also not associated with a higher incidence in women. Therefore, when considering the most common tumors in women, prolactinoma stands out as the primary candidate due to its frequency and the specific demographic it affects.